Re: Subordinate CA certificate showed within local (end-entity), not within Fortinet CA ce
As I marked as a tag, I was seeing that on 6.0 (actually 6.0.11). However it seems to me the same thing is occurring on 6.2.5 as well: the sub-CA certificate which the device has the key for appears as "Local certificate".
Did you generate the private key for the subordinate CA on your device (as opposed to importing the Sub-CA certificate, along with its key, into the Fortigate)?
Also, I agree Sub-CA certificates for which the device does NOT have the private key would appear as "Remote CA"/"External CA" certificates, as one can expect (which is what confuses me, done for ones but not others.)